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* module/language/tree-il.scm (<lambda>, <lambda-case>): Split lambda into the lambda itself, denoting the procedure, and lambda-case, denoting a particular arity case. Lambda-case is fairly featureful, and has not yet been fully tested. (<let-values>): Use a <lambda-case> as the binding expression. Seems to suit the purpose well. Adapt parsers, unparsers, traversal operators, etc. Sometimes in this first version we assume there are no optional args, rest args, or a predicate. * module/language/tree-il/analyze.scm (analyze-lexicals): Adapt for the new case-lambda regime. Fairly well commented. It actually simplifies things. (report-unused-variables): Update for new tree-il. * module/language/tree-il/compile-glil.scm: Adapt for the new tree-il. There are some first stabs here at proper case-lambda compilation, but they are untested as of yet. * module/language/tree-il/inline.scm (inline!): Rework so we can recurse on a single node; though these transformations are strictly reductive, so they should complete in bounded time. Simplify accordingly, and adapt to case-lambda. Oh, and we handle lambda->let in not just the nullary case. * module/ice-9/psyntax.scm (build-simple-lambda, build-case-lambda) (build-lambda-case): New constructors. The idea is that after syntax expansion, we shouldn't have to deal with improper lists any more. Build-simple-lambda is a shortcut for the common case. The others are not fully exercised yet. Adapt callers. (syntax): Add some debugging in the lambda case. I don't fully understand this, but in practice we don't seem to see rest args here. (lambda): Inline chi-lambda-clause, and adapt for build-simple-lambda. * module/ice-9/psyntax-pp.scm: Regenerated. * test-suite/tests/tree-il.test: Update tests for new tree-il lambda format, and to expect post-prelude labels for all glil programs. |
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